'Bachelorette' star Jillian Harris is expecting her first child

The former "Bachelorette" announced that she's expecting her first child with boyfriend, Justin Pasutto, on Friday in a super sweet Instagram post. The 36-year-old interior designer posted a photo of her baby belly and wrote, "I can't remember a time where my heart has been SO full. A total dream come true!! We are over the moon, stoked, blessed, exstatic!!!!! Little babe, we CANNOT wait to meet you!!!!!!@slipperygoose@nachocilantro#16weeks (ps details on the blog if you haven't heard the news yet... Love you ALL for your love and support!!!)"

Harris, who never married, also shared a sweet message on her website. For his part, Pasutto wrote an equally adorable note and also shared a photo of Harris standing in a sports bra and undies staring down at their dog. The photo showed off the side profile of her baby belly.

NEW YORK, NY - SEPTEMBER 12: TV pesonality Jillian Harris (L) and Sharinna Ortiz attend the Son Jung Wan fashion show during Spring 2016 New York Fashion Week at The Dock, Skylight at Moynihan Station on September 12, 2015 in New York City. (Photo by Michael Stewart/WireImage)

NEW YORK, NY - SEPTEMBER 12: TV pesonality Jillian Harris attends the Son Jung Wan fashion show during Spring 2016 New York Fashion Week at The Dock, Skylight at Moynihan Station on September 12, 2015 in New York City. (Photo by Michael Stewart/WireImage)

VANCOUVER, BC - APRIL 05: 'Love it or list it Vancouver' tv show host (R) Jillian Harris and Todd Talbot attend the Canadian TIre Home, Auto and Outdoor Show at the Vancouver Convention Centre on April 5, 2014 in Vancouver, Canada. (Photo by Phillip Chin/WireImage)

THE BACHELORETTE: ASHLEY AND J.P.'S WEDDING - Ashley Hebert and J.P. Rosenbaum, the second 'Bachelorette' couple to ever walk down the aisle, will share a dramatic new chapter of their love story with millions of viewers and Bachelor Nation when ABC televises their much anticipated wedding on 'The Bachelorette: Ashley and J.P.'s Wedding,' airing on SUNDAY, DECEMBER 16 (9:00-11:00 p.m., ET), on the ABC Television Network. (Photo by Adam Taylor/ABC via Getty Images) MOLLY MESNICK, ALI FEDOTOWSKY, JASON MESNICK, JILLIAN HARRIS

NEW YORK, NY - MAY 03: Jillian Harris poses for photos at the Madria Sangria booth at Union Square on May 3, 2012 in New York City. (Photo by Astrid Stawiarz/Getty Images)

EXTREME MAKEOVER: HOME EDITION - 'Watson Family' - Guest host Jenny McCarthy visits the Watson Family of Knoxville, TN in a special Thanksgiving-themed show. The Watson family has adopted children and runs a home for single mothers in need called Restoration House. The episode features a visit to the 'Wipeout' set and an appearance by UFC Champion fighter Jon 'Bones' Jones. The heart-tugging, original feel-good series, 'Extreme Makeover: Home Edition,' returns to ABC with this special holiday-themed episode premiering MONDAY, NOVEMBER 26 (9:00-11:00 p.m., ET), on ABC. (Katherine Bomboy-Thornton ABC via Getty Images)
JOHN LITTLEFIELD, JENNY MCCARTHY, TRACY HUTSON, JILLIAN HARRIS, PAUL DIMEO

EXTREME MAKEOVER: HOME EDITION - 'Watson Family' - Guest host Jenny McCarthy visits the Watson Family of Knoxville, TN in a special Thanksgiving-themed show. The Watson family has adopted children and runs a home for single mothers in need called Restoration House. The episode features a visit to the 'Wipeout' set and an appearance by UFC Champion fighter Jon 'Bones' Jones. The heart-tugging, original feel-good series, 'Extreme Makeover: Home Edition,' returns to ABC with this special holiday-themed episode premiering MONDAY, NOVEMBER 26 (9:00-11:00 p.m., ET), on ABC. (Photo by Katherine Bomboy-Thornton/ABC via Getty Images)
JENNY MCCARTHY, JILLIAN HARRIS